Homotopic Classification of Yang-Mills Vacua Taking into Account Causality
| dc.creator | Etesi, Gabor | |
| dc.date | 2000-11-17 | |
| dc.date | 2007-04-11 | |
| dc.date.accessioned | 2026-07-07T10:34:05Z | |
| dc.date.available | 2026-07-07T10:34:05Z | |
| dc.description | Existence of theta-vacuum states in Yang--Mills theories defined over asymptotically flat space-times examined taking into account not only the topology but the complicated causal structure of these space-times, too. By a result of Galloway apparently causality makes all vacuum states, seen by a distant observer, homotopically equivalent making the introduction of theta-terms unnecessary. But a more careful analysis shows that certain twisted classical vacuum states survive even in this case eventually leading to the conclusion that the concept of ``theta-vacua'' is meaningful in the case of general Yang--Mills theories. We give a classification of these vacuum states based on Isham's results showing that the Yang--Mills vacuum has the same complexity as in the flat Minkowskian case hence the general CP-problem is not more complicated than the well-known flat one. We also construct the theta vacua rigorously via geometric quantization. | |
| dc.description | LaTex, 13 pages, no figures; final published version | |
| dc.identifier | https://arxiv.org/abs/hep-th/0011157 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0011157 | |
| dc.identifier | Int.J.Theor.Phys.46:832-847,2007 | |
| dc.identifier | doi:10.1007/s10773-006-9243-8 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/179353 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | Homotopic Classification of Yang-Mills Vacua Taking into Account Causality | |
| dc.type | text |